Can I continue interrupted calculation with STATUS file?

Total energy, geometry optimization, DFT+U, spin....

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spamrefuse
Posts: 35
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Can I continue interrupted calculation with STATUS file?

Post by spamrefuse » Thu Jul 15, 2010 2:25 am

Hi,

When a job is abruptly terminated in the middle of a calculation,
a foobar_STATUS is left behind.

Can I use this STATUS file to easily restart the calculation
more-or-less from the place where it was stopped?

If yes, then how can I do that?
Is this documented somewhere?

Thank you!

Rob.

dcaliste
Posts: 44
Joined: Thu Oct 22, 2009 9:15 am
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Re: Can I continue interrupted calculation with STATUS file?

Post by dcaliste » Mon Jul 26, 2010 4:28 pm

The STATUS file is not used to restart a calculation.

The following files may be helpful:
- _WFK, contains the wavefunctions, big file, can be used to restart exactly the calculation at the point it stopped previously, see prtwf and irdwfk and getwfk variables;
- _DEN, contains the density, smaller file, can be used to establish the potential for the initial step of SCF loop, may be faster to help the self consistency like that, see variables prtden and friends;

If you're doing a geometry relaxation, when restarting, don't forget to cut and past the last coordinates from the log (or output) to the new input restart file for your atomic coordinates to match with your WFK file.

Damien.

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